Commit | Line | Data |
---|---|---|
8c2c3df3 CM |
1 | config ARM64 |
2 | def_bool y | |
92980405 | 3 | select ARCH_BINFMT_ELF_RANDOMIZE_PIE |
8c2c3df3 | 4 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
308c09f1 | 5 | select ARCH_HAS_SG_CHAIN |
1f85008e | 6 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
c63c8700 | 7 | select ARCH_USE_CMPXCHG_LOCKREF |
4badad35 | 8 | select ARCH_SUPPORTS_ATOMIC_RMW |
9170100e | 9 | select ARCH_WANT_OPTIONAL_GPIOLIB |
6212a512 | 10 | select ARCH_WANT_COMPAT_IPC_PARSE_VERSION |
b6f35981 | 11 | select ARCH_WANT_FRAME_POINTERS |
25c92a37 | 12 | select ARM_AMBA |
1aee5d7a | 13 | select ARM_ARCH_TIMER |
c4188edc | 14 | select ARM_GIC |
875cbf3e | 15 | select AUDIT_ARCH_COMPAT_GENERIC |
021f6537 | 16 | select ARM_GIC_V3 |
adace895 | 17 | select BUILDTIME_EXTABLE_SORT |
db2789b5 | 18 | select CLONE_BACKWARDS |
7ca2ef33 | 19 | select COMMON_CLK |
166936ba | 20 | select CPU_PM if (SUSPEND || CPU_IDLE) |
7bc13fd3 | 21 | select DCACHE_WORD_ACCESS |
d4932f9e | 22 | select GENERIC_ALLOCATOR |
8c2c3df3 | 23 | select GENERIC_CLOCKEVENTS |
1f85008e | 24 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
3be1a5c4 | 25 | select GENERIC_CPU_AUTOPROBE |
bf4b558e | 26 | select GENERIC_EARLY_IOREMAP |
8c2c3df3 CM |
27 | select GENERIC_IOMAP |
28 | select GENERIC_IRQ_PROBE | |
29 | select GENERIC_IRQ_SHOW | |
65cd4f6c | 30 | select GENERIC_SCHED_CLOCK |
8c2c3df3 | 31 | select GENERIC_SMP_IDLE_THREAD |
12a0ef7b WD |
32 | select GENERIC_STRNCPY_FROM_USER |
33 | select GENERIC_STRNLEN_USER | |
8c2c3df3 | 34 | select GENERIC_TIME_VSYSCALL |
a1ddc74a | 35 | select HANDLE_DOMAIN_IRQ |
8c2c3df3 | 36 | select HARDIRQS_SW_RESEND |
875cbf3e | 37 | select HAVE_ARCH_AUDITSYSCALL |
9732cafd | 38 | select HAVE_ARCH_JUMP_LABEL |
9529247d | 39 | select HAVE_ARCH_KGDB |
8c2c3df3 | 40 | select HAVE_ARCH_TRACEHOOK |
e54bcde3 | 41 | select HAVE_BPF_JIT |
af64d2aa | 42 | select HAVE_C_RECORDMCOUNT |
c0c264ae | 43 | select HAVE_CC_STACKPROTECTOR |
9b2a60c4 | 44 | select HAVE_DEBUG_BUGVERBOSE |
b69ec42b | 45 | select HAVE_DEBUG_KMEMLEAK |
8c2c3df3 CM |
46 | select HAVE_DMA_API_DEBUG |
47 | select HAVE_DMA_ATTRS | |
6ac2104d | 48 | select HAVE_DMA_CONTIGUOUS |
bd7d38db | 49 | select HAVE_DYNAMIC_FTRACE |
50afc33a | 50 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
af64d2aa | 51 | select HAVE_FTRACE_MCOUNT_RECORD |
819e50e2 AT |
52 | select HAVE_FUNCTION_TRACER |
53 | select HAVE_FUNCTION_GRAPH_TRACER | |
8c2c3df3 | 54 | select HAVE_GENERIC_DMA_COHERENT |
8c2c3df3 | 55 | select HAVE_HW_BREAKPOINT if PERF_EVENTS |
8c2c3df3 | 56 | select HAVE_MEMBLOCK |
55834a77 | 57 | select HAVE_PATA_PLATFORM |
8c2c3df3 | 58 | select HAVE_PERF_EVENTS |
2ee0d7fd JP |
59 | select HAVE_PERF_REGS |
60 | select HAVE_PERF_USER_STACK_DUMP | |
5e5f6dc1 | 61 | select HAVE_RCU_TABLE_FREE |
055b1212 | 62 | select HAVE_SYSCALL_TRACEPOINTS |
8c2c3df3 | 63 | select IRQ_DOMAIN |
fea2acaa | 64 | select MODULES_USE_ELF_RELA |
8c2c3df3 CM |
65 | select NO_BOOTMEM |
66 | select OF | |
67 | select OF_EARLY_FLATTREE | |
9bf14b7c | 68 | select OF_RESERVED_MEM |
8c2c3df3 | 69 | select PERF_USE_VMALLOC |
aa1e8ec1 CM |
70 | select POWER_RESET |
71 | select POWER_SUPPLY | |
8c2c3df3 CM |
72 | select RTC_LIB |
73 | select SPARSE_IRQ | |
7ac57a89 | 74 | select SYSCTL_EXCEPTION_TRACE |
6c81fe79 | 75 | select HAVE_CONTEXT_TRACKING |
8c2c3df3 CM |
76 | help |
77 | ARM 64-bit (AArch64) Linux support. | |
78 | ||
79 | config 64BIT | |
80 | def_bool y | |
81 | ||
82 | config ARCH_PHYS_ADDR_T_64BIT | |
83 | def_bool y | |
84 | ||
85 | config MMU | |
86 | def_bool y | |
87 | ||
ce816fa8 | 88 | config NO_IOPORT_MAP |
d1e6dc91 | 89 | def_bool y if !PCI |
8c2c3df3 CM |
90 | |
91 | config STACKTRACE_SUPPORT | |
92 | def_bool y | |
93 | ||
94 | config LOCKDEP_SUPPORT | |
95 | def_bool y | |
96 | ||
97 | config TRACE_IRQFLAGS_SUPPORT | |
98 | def_bool y | |
99 | ||
c209f799 | 100 | config RWSEM_XCHGADD_ALGORITHM |
8c2c3df3 CM |
101 | def_bool y |
102 | ||
103 | config GENERIC_HWEIGHT | |
104 | def_bool y | |
105 | ||
106 | config GENERIC_CSUM | |
107 | def_bool y | |
108 | ||
109 | config GENERIC_CALIBRATE_DELAY | |
110 | def_bool y | |
111 | ||
19e7640d | 112 | config ZONE_DMA |
8c2c3df3 CM |
113 | def_bool y |
114 | ||
29e56940 SC |
115 | config HAVE_GENERIC_RCU_GUP |
116 | def_bool y | |
117 | ||
8c2c3df3 CM |
118 | config ARCH_DMA_ADDR_T_64BIT |
119 | def_bool y | |
120 | ||
121 | config NEED_DMA_MAP_STATE | |
122 | def_bool y | |
123 | ||
124 | config NEED_SG_DMA_LENGTH | |
125 | def_bool y | |
126 | ||
127 | config SWIOTLB | |
128 | def_bool y | |
129 | ||
130 | config IOMMU_HELPER | |
131 | def_bool SWIOTLB | |
132 | ||
4cfb3613 AB |
133 | config KERNEL_MODE_NEON |
134 | def_bool y | |
135 | ||
92cc15fc RH |
136 | config FIX_EARLYCON_MEM |
137 | def_bool y | |
138 | ||
8c2c3df3 CM |
139 | source "init/Kconfig" |
140 | ||
141 | source "kernel/Kconfig.freezer" | |
142 | ||
1ae90e79 CM |
143 | menu "Platform selection" |
144 | ||
28f7420d RMC |
145 | config ARCH_THUNDER |
146 | bool "Cavium Inc. Thunder SoC Family" | |
147 | help | |
148 | This enables support for Cavium's Thunder Family of SoCs. | |
149 | ||
1ae90e79 CM |
150 | config ARCH_VEXPRESS |
151 | bool "ARMv8 software model (Versatile Express)" | |
152 | select ARCH_REQUIRE_GPIOLIB | |
153 | select COMMON_CLK_VERSATILE | |
aa1e8ec1 | 154 | select POWER_RESET_VEXPRESS |
1ae90e79 CM |
155 | select VEXPRESS_CONFIG |
156 | help | |
157 | This enables support for the ARMv8 software model (Versatile | |
158 | Express). | |
8c2c3df3 | 159 | |
15942853 VK |
160 | config ARCH_XGENE |
161 | bool "AppliedMicro X-Gene SOC Family" | |
162 | help | |
163 | This enables support for AppliedMicro X-Gene SOC Family | |
164 | ||
8c2c3df3 CM |
165 | endmenu |
166 | ||
167 | menu "Bus support" | |
168 | ||
169 | config ARM_AMBA | |
170 | bool | |
171 | ||
d1e6dc91 LD |
172 | config PCI |
173 | bool "PCI support" | |
174 | help | |
175 | This feature enables support for PCI bus system. If you say Y | |
176 | here, the kernel will include drivers and infrastructure code | |
177 | to support PCI bus devices. | |
178 | ||
179 | config PCI_DOMAINS | |
180 | def_bool PCI | |
181 | ||
182 | config PCI_DOMAINS_GENERIC | |
183 | def_bool PCI | |
184 | ||
185 | config PCI_SYSCALL | |
186 | def_bool PCI | |
187 | ||
188 | source "drivers/pci/Kconfig" | |
189 | source "drivers/pci/pcie/Kconfig" | |
190 | source "drivers/pci/hotplug/Kconfig" | |
191 | ||
8c2c3df3 CM |
192 | endmenu |
193 | ||
194 | menu "Kernel Features" | |
195 | ||
e41ceed0 JL |
196 | choice |
197 | prompt "Page size" | |
198 | default ARM64_4K_PAGES | |
199 | help | |
200 | Page size (translation granule) configuration. | |
201 | ||
202 | config ARM64_4K_PAGES | |
203 | bool "4KB" | |
204 | help | |
205 | This feature enables 4KB pages support. | |
206 | ||
8c2c3df3 | 207 | config ARM64_64K_PAGES |
e41ceed0 | 208 | bool "64KB" |
8c2c3df3 CM |
209 | help |
210 | This feature enables 64KB pages support (4KB by default) | |
211 | allowing only two levels of page tables and faster TLB | |
212 | look-up. AArch32 emulation is not available when this feature | |
213 | is enabled. | |
214 | ||
e41ceed0 JL |
215 | endchoice |
216 | ||
217 | choice | |
218 | prompt "Virtual address space size" | |
219 | default ARM64_VA_BITS_39 if ARM64_4K_PAGES | |
220 | default ARM64_VA_BITS_42 if ARM64_64K_PAGES | |
221 | help | |
222 | Allows choosing one of multiple possible virtual address | |
223 | space sizes. The level of translation table is determined by | |
224 | a combination of page size and virtual address space size. | |
225 | ||
226 | config ARM64_VA_BITS_39 | |
227 | bool "39-bit" | |
228 | depends on ARM64_4K_PAGES | |
229 | ||
230 | config ARM64_VA_BITS_42 | |
231 | bool "42-bit" | |
232 | depends on ARM64_64K_PAGES | |
233 | ||
c79b954b JL |
234 | config ARM64_VA_BITS_48 |
235 | bool "48-bit" | |
04f905a9 | 236 | depends on !ARM_SMMU |
c79b954b | 237 | |
e41ceed0 JL |
238 | endchoice |
239 | ||
240 | config ARM64_VA_BITS | |
241 | int | |
242 | default 39 if ARM64_VA_BITS_39 | |
243 | default 42 if ARM64_VA_BITS_42 | |
c79b954b | 244 | default 48 if ARM64_VA_BITS_48 |
e41ceed0 | 245 | |
abe669d7 CM |
246 | config ARM64_PGTABLE_LEVELS |
247 | int | |
248 | default 2 if ARM64_64K_PAGES && ARM64_VA_BITS_42 | |
383c2799 | 249 | default 3 if ARM64_64K_PAGES && ARM64_VA_BITS_48 |
abe669d7 CM |
250 | default 3 if ARM64_4K_PAGES && ARM64_VA_BITS_39 |
251 | default 4 if ARM64_4K_PAGES && ARM64_VA_BITS_48 | |
c79b954b | 252 | |
a872013d WD |
253 | config CPU_BIG_ENDIAN |
254 | bool "Build big-endian kernel" | |
255 | help | |
256 | Say Y if you plan on running a kernel in big-endian mode. | |
257 | ||
8c2c3df3 CM |
258 | config SMP |
259 | bool "Symmetric Multi-Processing" | |
8c2c3df3 CM |
260 | help |
261 | This enables support for systems with more than one CPU. If | |
262 | you say N here, the kernel will run on single and | |
263 | multiprocessor machines, but will use only one CPU of a | |
264 | multiprocessor machine. If you say Y here, the kernel will run | |
265 | on many, but not all, single processor machines. On a single | |
266 | processor machine, the kernel will run faster if you say N | |
267 | here. | |
268 | ||
269 | If you don't know what to do here, say N. | |
270 | ||
f6e763b9 MB |
271 | config SCHED_MC |
272 | bool "Multi-core scheduler support" | |
273 | depends on SMP | |
274 | help | |
275 | Multi-core scheduler support improves the CPU scheduler's decision | |
276 | making when dealing with multi-core CPU chips at a cost of slightly | |
277 | increased overhead in some places. If unsure say N here. | |
278 | ||
279 | config SCHED_SMT | |
280 | bool "SMT scheduler support" | |
281 | depends on SMP | |
282 | help | |
283 | Improves the CPU scheduler's decision making when dealing with | |
284 | MultiThreading at a cost of slightly increased overhead in some | |
285 | places. If unsure say N here. | |
286 | ||
8c2c3df3 | 287 | config NR_CPUS |
e3672649 RR |
288 | int "Maximum number of CPUs (2-64)" |
289 | range 2 64 | |
8c2c3df3 | 290 | depends on SMP |
15942853 | 291 | # These have to remain sorted largest to smallest |
e3672649 | 292 | default "64" |
8c2c3df3 | 293 | |
9327e2c6 MR |
294 | config HOTPLUG_CPU |
295 | bool "Support for hot-pluggable CPUs" | |
296 | depends on SMP | |
297 | help | |
298 | Say Y here to experiment with turning CPUs off and on. CPUs | |
299 | can be controlled through /sys/devices/system/cpu. | |
300 | ||
8c2c3df3 CM |
301 | source kernel/Kconfig.preempt |
302 | ||
303 | config HZ | |
304 | int | |
305 | default 100 | |
306 | ||
307 | config ARCH_HAS_HOLES_MEMORYMODEL | |
308 | def_bool y if SPARSEMEM | |
309 | ||
310 | config ARCH_SPARSEMEM_ENABLE | |
311 | def_bool y | |
312 | select SPARSEMEM_VMEMMAP_ENABLE | |
313 | ||
314 | config ARCH_SPARSEMEM_DEFAULT | |
315 | def_bool ARCH_SPARSEMEM_ENABLE | |
316 | ||
317 | config ARCH_SELECT_MEMORY_MODEL | |
318 | def_bool ARCH_SPARSEMEM_ENABLE | |
319 | ||
320 | config HAVE_ARCH_PFN_VALID | |
321 | def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM | |
322 | ||
323 | config HW_PERF_EVENTS | |
324 | bool "Enable hardware performance counter support for perf events" | |
325 | depends on PERF_EVENTS | |
326 | default y | |
327 | help | |
328 | Enable hardware performance counter support for perf events. If | |
329 | disabled, perf events will use software events only. | |
330 | ||
084bd298 SC |
331 | config SYS_SUPPORTS_HUGETLBFS |
332 | def_bool y | |
333 | ||
334 | config ARCH_WANT_GENERAL_HUGETLB | |
335 | def_bool y | |
336 | ||
337 | config ARCH_WANT_HUGE_PMD_SHARE | |
338 | def_bool y if !ARM64_64K_PAGES | |
339 | ||
af074848 SC |
340 | config HAVE_ARCH_TRANSPARENT_HUGEPAGE |
341 | def_bool y | |
342 | ||
a41dc0e8 CM |
343 | config ARCH_HAS_CACHE_LINE_SIZE |
344 | def_bool y | |
345 | ||
8c2c3df3 CM |
346 | source "mm/Kconfig" |
347 | ||
aa42aa13 SS |
348 | config XEN_DOM0 |
349 | def_bool y | |
350 | depends on XEN | |
351 | ||
352 | config XEN | |
c2ba1f7d | 353 | bool "Xen guest support on ARM64" |
aa42aa13 | 354 | depends on ARM64 && OF |
83862ccf | 355 | select SWIOTLB_XEN |
aa42aa13 SS |
356 | help |
357 | Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64. | |
358 | ||
d03bb145 SC |
359 | config FORCE_MAX_ZONEORDER |
360 | int | |
361 | default "14" if (ARM64_64K_PAGES && TRANSPARENT_HUGEPAGE) | |
362 | default "11" | |
363 | ||
8c2c3df3 CM |
364 | endmenu |
365 | ||
366 | menu "Boot options" | |
367 | ||
368 | config CMDLINE | |
369 | string "Default kernel command string" | |
370 | default "" | |
371 | help | |
372 | Provide a set of default command-line options at build time by | |
373 | entering them here. As a minimum, you should specify the the | |
374 | root device (e.g. root=/dev/nfs). | |
375 | ||
376 | config CMDLINE_FORCE | |
377 | bool "Always use the default kernel command string" | |
378 | help | |
379 | Always use the default kernel command string, even if the boot | |
380 | loader passes other arguments to the kernel. | |
381 | This is useful if you cannot or don't want to change the | |
382 | command-line options your boot loader passes to the kernel. | |
383 | ||
f4f75ad5 AB |
384 | config EFI_STUB |
385 | bool | |
386 | ||
f84d0275 MS |
387 | config EFI |
388 | bool "UEFI runtime support" | |
389 | depends on OF && !CPU_BIG_ENDIAN | |
390 | select LIBFDT | |
391 | select UCS2_STRING | |
392 | select EFI_PARAMS_FROM_FDT | |
e15dd494 | 393 | select EFI_RUNTIME_WRAPPERS |
f4f75ad5 AB |
394 | select EFI_STUB |
395 | select EFI_ARMSTUB | |
f84d0275 MS |
396 | default y |
397 | help | |
398 | This option provides support for runtime services provided | |
399 | by UEFI firmware (such as non-volatile variables, realtime | |
3c7f2550 MS |
400 | clock, and platform reset). A UEFI stub is also provided to |
401 | allow the kernel to be booted as an EFI application. This | |
402 | is only useful on systems that have UEFI firmware. | |
f84d0275 | 403 | |
8c2c3df3 CM |
404 | endmenu |
405 | ||
406 | menu "Userspace binary formats" | |
407 | ||
408 | source "fs/Kconfig.binfmt" | |
409 | ||
410 | config COMPAT | |
411 | bool "Kernel support for 32-bit EL0" | |
412 | depends on !ARM64_64K_PAGES | |
413 | select COMPAT_BINFMT_ELF | |
af1839eb | 414 | select HAVE_UID16 |
84b9e9b4 | 415 | select OLD_SIGSUSPEND3 |
51682036 | 416 | select COMPAT_OLD_SIGACTION |
8c2c3df3 CM |
417 | help |
418 | This option enables support for a 32-bit EL0 running under a 64-bit | |
419 | kernel at EL1. AArch32-specific components such as system calls, | |
420 | the user helper functions, VFP support and the ptrace interface are | |
421 | handled appropriately by the kernel. | |
422 | ||
423 | If you want to execute 32-bit userspace applications, say Y. | |
424 | ||
425 | config SYSVIPC_COMPAT | |
426 | def_bool y | |
427 | depends on COMPAT && SYSVIPC | |
428 | ||
429 | endmenu | |
430 | ||
166936ba LP |
431 | menu "Power management options" |
432 | ||
433 | source "kernel/power/Kconfig" | |
434 | ||
435 | config ARCH_SUSPEND_POSSIBLE | |
436 | def_bool y | |
437 | ||
438 | config ARM64_CPU_SUSPEND | |
439 | def_bool PM_SLEEP | |
440 | ||
441 | endmenu | |
442 | ||
1307220d LP |
443 | menu "CPU Power Management" |
444 | ||
445 | source "drivers/cpuidle/Kconfig" | |
446 | ||
52e7e816 RH |
447 | source "drivers/cpufreq/Kconfig" |
448 | ||
449 | endmenu | |
450 | ||
8c2c3df3 CM |
451 | source "net/Kconfig" |
452 | ||
453 | source "drivers/Kconfig" | |
454 | ||
f84d0275 MS |
455 | source "drivers/firmware/Kconfig" |
456 | ||
8c2c3df3 CM |
457 | source "fs/Kconfig" |
458 | ||
c3eb5b14 MZ |
459 | source "arch/arm64/kvm/Kconfig" |
460 | ||
8c2c3df3 CM |
461 | source "arch/arm64/Kconfig.debug" |
462 | ||
463 | source "security/Kconfig" | |
464 | ||
465 | source "crypto/Kconfig" | |
2c98833a AB |
466 | if CRYPTO |
467 | source "arch/arm64/crypto/Kconfig" | |
468 | endif | |
8c2c3df3 CM |
469 | |
470 | source "lib/Kconfig" |